11915959122 has 12 divisors (see below), whose sum is σ = 25817911470. Its totient is φ = 3971986368.

The previous prime is 11915959063. The next prime is 11915959129. The reversal of 11915959122 is 22195951911.

11915959122 is a `hidden beast` number, since 1 + 1 + 9 + 1 + 59 + 591 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9379728801 + 2536230321 = 96849^2 + 50361^2 .

It is not an unprimeable number, because it can be changed into a prime (11915959129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330998847 + ... + 330998882.

Almost surely, 2^11915959122 is an apocalyptic number.

11915959122 is an abundant number, since it is smaller than the sum of its proper divisors (13901952348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11915959122 is a wasteful number, since it uses less digits than its factorization.

11915959122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661997737 (or 661997734 counting only the distinct ones).

The product of its digits is 72900, while the sum is 45.

The spelling of 11915959122 in words is "eleven billion, nine hundred fifteen million, nine hundred fifty-nine thousand, one hundred twenty-two".